iPad Screenshots


** Macworld Editors' Choice Award Winner! **

Stephen Fry: “This app is so beautiful it makes me want to weep.”

Smithsonian: “Immersive.” CNET: “Spectacular.” Macworld: “Exquisite.”

Frax is an art program that puts the “equations of nature” in the palm of your hand. Frax is powered by fractal geometry, the same principle that creates patterns of self-similarity in our natural world. From spiral galaxies to hurricanes, from tree limbs to branching blood vessels, the universe is filled with endless variation and staggering beauty. Frax visualizes this natural geometric code, so you can explore vast animating digital landscapes and make a masterpiece on your touchscreen.

Zoom deep into your creations. Use multi-touch gestures to fly through and explore intricate shapes and patterns. Tilt-to-steer through animating digital worlds, as you challenge yourself to chart a course for a long and beautiful flight –all at a depth range of a trillion-to-one.

Unleash your inner artist with complex color gradients to smoothly tint and shade your fractal shapes, two light sources for glossy reflections, and novel textures. The combinations are endless: supersmooth or wildly chaotic, metallic sheen or pearly white, subtle shades, stark monochrome or screaming supergloss. Or upgrade to Pro to access almost 100 parameters and controls!

Then share your creations with your friends via Facebook, Twitter and text. Or invite other users to step into your animating world by sharing a live preset link. You can render high-quality images to your photo library or create ultra-high quality 200 Megapixel renders with an IAP. And for the first time, you can now record VIDEO of your Frax animations directly within the app! (Pro IAP required.) Our users have put their designs on canvas, posters, scarves, T-shirts and textiles. The creative possibilities are endless!

What will Frax inspire in you?

We hope you enjoy Frax!
Ben Weiss • Kai Krause • Tom Beddard

Note: Frax is one of the most math-intensive apps on iOS! We recommend an iPad Pro / iPad Air / iPad Mini Retina or newer.

What's New

Version 1.4.6

- Bug fixes and improvements

Ratings and Reviews

4.7 out of 5
22 Ratings
22 Ratings

Not just a toy


I started out enjoying exploring the different fractals. Then recently I needed a better background for PowerPoint. This was a great tool to create a background with depth and character but boring enough to be in the background. I focused on what normally would be a boring part of the fractal. I know this is somewhat an unintended use for this but I was able to use this as a tool rather than just zooming through cool scenery.

Fun way to explore and create fractals


Wonderful app that makes exploring and creating fractal imagery really fun and enjoyable. The UI makes it fun and yet still offers lots of control. Brings me back to the days of the KPT plugins!

Worth More Than 5 Stars


Beautiful, you can create local renders, and more... it’s every nerd’s dream. In fact it is every person’s dream, I cannot describe how much I love this app with words. BUY IT NOW!!!


Iter9, LLC
97.5 MB
Requires iOS 8.0 or later. Compatible with iPad.
English, French, German, Italian, Japanese, Korean, Simplified Chinese, Swedish
Age Rating
Rated 4+
©2018 iter9, LLC
In-App Purchases
  1. Frax Pro Upgrade $6.99
  2. Pack of 1000 Cloud Credits $9.99
  3. Pack of 240 Cloud Credits $5.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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